after playin split/second for the past 3 hrs got me 12 trophies and shit loads of heart-pounding, adrenaline rushful fun!! My friends getting it soon so we'll have some amazing private races to have fun with

Voted "Blur".
Though, I like both game a lot!
Reason I voted Blur is pretty simple.
Online racing.

Blur has a way more balanced system when it comes to online racing.
This makes the game way more fun to keep playing from the start.
Playing S/S online was a disaster from the start.
Cars are passing me by if like I'm standing still. They pass you and you never see them again during the race.

My oppinion, when you play such a game, it should be accessible from the start. Not forcing you to complete the single player at 100% first, before thinking about multiplayer.

Let's put it this way blur and modnation racers both have power-ups (weapons that'll be spammed on you) in blur you can turn them off but whats the point?

Split/Second says to the hell with that kiddy shit, lets throw in some explosions/environmental damage see what they can dodge.
A lot more challenging and fun a game for hardcore racing fans.
Only thing that pisses me off is the dlc being released that pretty much gives you all the cars, so no you do not need to finish the game 100%

Still picking Blur ? a day of being spammed to death and there goes the game have fun

Let's put it this way blur and modnation racers both have power-ups (weapons that'll be spammed on you) in blur you can turn them off but whats the point?

Wow... That's like... comparing Tekken with Street Fighter... >.>
Looking at your profile, you don't even own either of the racing games you mentioned. That being said, you can't compare them to be equal to eachother.
I have all three of these games. ModNation, Blur, AND Split Second.
All these games are different from eachother and has their own charmes.

Truth to be told, the powerups are in both games. ModNation and Blur.
However, the whole gameplay / experience / adrenaline / and so on, is totaly different from eachother.
Plus, Modnation you can wield only 1 powerup (build up in three stages, but still 1 powerup). Blur on the other hand, you can wield 3 of them. Select your powerups to get the best use out of each one of them.
Way different play styl compared to ModNation.

That doesn't justify shit. He probably has another account, or has the game on PC/360.

Did you only reply on that sentence, or did you read rest of my post as well ?

Comparing Blur with ModNation is like comparing Tekken with Street Fighter or Mortal Kombat with BlazBlue...
You can kick and punch in all four games, but that doesn't mean both games are the same. That was my whole point....